Well, I fixed some CPU usage on CVS so it dropped a lot on systems that are d/l at high rate, and it also seemed to make the mule dl faster... maybe 'cos we were losing packets because amule was unable to process them due to cpu usage.
Right now, amule d/l at my line full speed (35 kb/s) in... less than 15 min!
Can be luck, but it's 3 days of luck right now.
So wait for amule 1.2.1 that will be one of the bests releases ever.